The Scully 08928 is a PCAM 7-pole J560 optic style plug and cable assembly designed for use with the Scully Universal Truck Tester (08938). This specialized test cable connects the Universal Truck Tester to tank truck J560 optic overfill prevention systems for comprehensive diagnostics of road tanker overfill prevention and grounding systems. The J560 style configuration is specifically designed for SAE J560 optic sensor applications in tank trailer operations.